查询词典 electron beam

Having developed an understanding of basics, intellisuite is introduced in the context of mems cad with the aim of using it in the design and simulation of a simple mems device which will be subsequently fabricated using the clean room facility ie mask aligner, electron beam lithography, wet bench for chemical etching, sputtering etc.

制订了一项谅解的基础， intellisuite介绍了在微机电系统计算机辅助设计的目的是利用它在设计和模拟一个简单的mems器件将在随后采用清洁房间设施即遮罩同步，电子束光刻，湿法化学腐蚀板凳，溅射等先决条件：英国104 ， 103太太，太太， 221 ， 231太太，太太312 。

Based on thin annular electron beam approximation, the focusing effect of plasma is investigated.

比较了在不同气压和空心阴极孔径下虚阳极的形成时间和扩展速度。

In atomic vapor laser isotope separation, the metal is heated and melted by electron beam, and some atoms are on the metastable states. In order to analyse the influence of metastable states' deexcitation on vapor physical parameters, such as velocity, temperature, direct simulation Monte Carlo method is used to simulate the 2 D gadolinium evaporation from long and narrow crucible.

在原子法激光同位素分离工程中，金属受电子束的加热而熔化，有一部分原子处于亚稳态能级，为了分析在蒸发过程中亚稳态原子退激对原子蒸气的速度、温度等物理特性的影响，采用直接模拟蒙特卡罗法模拟钆原子蒸发过程，分析亚稳态原子退激过程对蒸气特性的影响。

High temperature evaporation of molten cavity heated by electron beam in crucible is one of the most important processes in the uranium cycling system in atomic vapor laser isotope separation.

电子枪加热坩埚熔池高温蒸发是原子蒸气激光同位素分离铀循环系统的一个重要环节。

The rules of the cold-test characteristics changing with helix pitch are also studied and it turns out that, with increasing helix pitch, the phase velocity increases linearly, the interaction impedance changes nonlinearly and the attenuation constant decreases nonlinearly. At the same time, with the limitation of the synchronism between the electron beam and the electromagnetic wave, the change of pitch is small and therefore an approximate linear relation can be introduced.

研究表明：相速几乎随螺距增大而线性变大，互作用阻抗与螺距是非线性的关系，衰减常数随螺距增大而非线性地减小；由于在维持电子注与电磁波速度同步的限制下，螺距变化的幅度不可能很大，因此可近似按线性关系来处理互作用阻抗及衰减常数与螺距之间的关系。

The accumulated self-exciting dose for Na-24 is only 1.12 mGy during its average life-time for irradiation of total thermal neutron fluence of 3.6E12 nth/cm^2. Conclusions: Because of the self-exciting dose reduced from neutron activation can be neglected for gamma dose measurement in neutron and gamma mixed field, and the threshold of linear response is 2 Gy, the FWT-70-40 dosimeter not only can be used for high dose rate Co-60 irradiation field and the high energy electron beam for medical purpose, but also can be used for gamma dose measurement in an epithermal neutron beam for boron neutron capture therapy.

型号FWT-70-4OM）剂量计於BNCT高中子通量与剂量的中子、加马混合辐射场所产生的自激剂量，对加马剂量度量干扰可忽略，且对加马的最低剂量限值为2Gy，因此除可应用於钴60加马高剂量辐射场与放射治疗用高能量、高剂量电子射束的剂量度量外，亦可应用於BNCT照射治疗用高能量、高剂量的中子、加马混合辐射场的加马剂量度量。

Overlapped increment scanning in electron beam lithography and the calculation methods for the exposure doses and the etching depth and sensitivity are presented for the structural characteristics of three-dimensional patterns as well as the self-devised pattern generator of an e-beam lithography system.

针对三维曝光图形的结构特点，结合自行设计的图形发生器，提出了电子束重复增量扫描方式及曝光剂量与刻蚀深度关系和灵敏度的计算方法。

Consequently the beam transmission problem is solved well. The general design curves of microwave plasma drift tube are developed by the theory and they can be used for development of the plasma microwave devices. Ion channel, as a important phenomenon in the interaction between electron beam and plasma, is first introduced into the study of PASOTRON, to replace the concept'plasma channel'used in general plasma microwave devices. A model is created to describe the channel performance. The channel is not stable, it is oscillatory and the oscillation frequency is larger than that of plasma.

作为电子束与等离子体相互作用的一个重要现象，本文首次将离子通道的概念引入到了PASOTRON的研究中，以区别常规的等离子体通道概念，并通过建立的模型推出离子通道并非一稳定规则的通道，而是具有振荡特性，振荡频率高于等离子体频率，推出了当满足一定条件时束外可能没有电子而成为纯的离子通道，这种状态对微波器件有重要的价值。

To solve this problem, a multi-electron-beam Cherenkov free -electron laser was proposed and theoretically analyzed. A MCFEL oscillator experiment was carried out to demonstrate its feasibility and advantages.

为了验证多电子束契伦柯夫自由电子激光的可行性和优越性，我们开展了多电束契伦柯夫自由电子激光振荡器联合实验研究。

So, our main work is to obtain a satisfactory electron beam with diameter about micrometers by means of choosing a suitable LaBe cathode electron-gun system and a suitable focusing system.

电子束打靶产生X射线已经是很成熟的理论，因此，本论文的理论研究重点是选择合适结构的电子源系统与合适结构的聚焦系统并将电子束会聚为微米级的细小束斑。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。